A chemical A is used for the preparation of washing soda to recover ammonia. When CO₂ is bubbled through an aqueous solution of A, the solution turns milky. It is used in white washing due to disinfectant nature. What is the chemical formula of A ?

(i) Ca(HCO₃)₂

(ii) CaO

(iii) Ca(OH)₂

(iv) CaCO₃

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Payal Gupta | Contributor-Level 10

8 months ago

This is a multiple choice type question as classified in NCERT Exemplar

Correct Option (iii)

The chemical formula of A is Ca (OH)₂ Sodium carbonate is prepared by Solvay's process. In this process, ammonia is recovered when ammonium chloride reacts with calcium hydroxide. On reacting NH₄Cl with Ca (OH

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A chemical A is used for the preparation of washing soda to recover ammonia. When CO2 is bubbled through an aqueous solution of A, the solution turns milky. It is used in white washing due to disinfectant nature. What is the chemical formula of A ? (i) Ca(HCO3)2 (ii) CaO (iii) Ca(OH)2 (iv) CaCO3

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